#🔒 What does the py command actually do in Windows Command Prompt?

22 messages · Page 1 of 1 (latest)

paper peak
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I know that without any arguments it starts a repl inside of the terminal but is it a path, because the alternative is python, which to my knowledge is a path.

desert fernBOT
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@paper peak

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hollow forge
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It's a separate executable that eventually calls (some version of) python. Very handy.

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(also, not sure what you mean by "is a path")

paper peak
hollow forge
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Sure, that works the same way, there's a py.exe in one of the folders in your PATH

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(that's how all console commands work - when you type a command, unless it is built into your terminal like cd, its name is looked up in PATH and whatever executable found is ran)

stark ridge
paper peak
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so theres no info on the python one

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but the py is located under windows folder

stark ridge
paper peak
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should I? i've heard its bad for multiple versions

true locust
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I'll always have my "main" Python version on PATH so I can install libraries that have their own commands (like black, or ipython, or pyinstaller) and they'll just work.

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I don't think it's bad as long as you know what you're doing

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You can still access other versions with py

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You also don't need to do that though

paper peak
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is it the path to a file?

civic pivot
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With the "py.exe" command you can execute a particular version of python that you have previously installed. For example, if you have Python 3.10 installed and later install Python 3.12 alongside it, you can use the command "py.exe -3.10 my_script.py" to have my_script.py run under the 3.10 interpreter, even if Python 3.12 is the one that runs by default when you use "python.exe". This is useful if my_sctipt.py has dependencies on libraries that are installed under 3.10 but not 3.12.

desert fernBOT
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